CVE-2026-58273
Full vulnerability record from the local CVENow database.
Description
Rucio is a scientific data management framework. From 1.16.1 until 35.9.0, 38.6.0, and 41.0.0rc1, the /credentials/signurl endpoint reads X-Rucio-Account instead of the account stored in request.environ['issuer'] by token authentication. Any authenticated low-privilege user can supply root as the header value and pass the root-only get_signed_url permission check. The server then returns a presigned read, write, or delete URL for an attacker-selected object using stored S3, GCS, or Swift credentials, and X-Rucio-VO can select another tenant in multi-VO deployments. This permits data disclosure, modification, deletion, and cross-tenant access on cloud-backed RSEs. This issue is fixed in versions 35.9.0, 38.6.0, and 41.0.0rc1.
View original CVE JSON
{
"id": "CVE-2026-58273",
"sourceIdentifier": "[email protected]",
"published": "2026-11-05T22:18:49.230",
"lastModified": "2026-11-05T22:18:49.230",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Rucio is a scientific data management framework. From 1.16.1 until 35.9.0, 38.6.0, and 41.0.0rc1, the /credentials/signurl endpoint reads X-Rucio-Account instead of the account stored in request.environ['issuer'] by token authentication. Any authenticated low-privilege user can supply root as the header value and pass the root-only get_signed_url permission check. The server then returns a presigned read, write, or delete URL for an attacker-selected object using stored S3, GCS, or Swift credentials, and X-Rucio-VO can select another tenant in multi-VO deployments. This permits data disclosure, modification, deletion, and cross-tenant access on cloud-backed RSEs. This issue is fixed in versions 35.9.0, 38.6.0, and 41.0.0rc1."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "rucio",
"product": "rucio",
"versions": [
{
"version": ">= 1.16.1, < 35.9.0",
"status": "affected"
},
{
"version": ">= 36.0.0, < 38.6.0",
"status": "affected"
},
{
"version": ">= 39.0.0, < 41.0.0rc1",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.8,
"impactScore": 5.2
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-639"
}
]
}
],
"references": [
{
"url": "https://github.com/rucio/rucio/commit/64c0e6a6a93ae88427ff3b7d77532ce08c8a69ec",
"source": "[email protected]"
},
{
"url": "https://github.com/rucio/rucio/commit/8bdc38994a8766658d0314d36afc104c9242c96f",
"source": "[email protected]"
},
{
"url": "https://github.com/rucio/rucio/commit/8d9ba31514e6f5dca32b8c1db4738582cb37ec3a",
"source": "[email protected]"
},
{
"url": "https://github.com/rucio/rucio/releases/tag/35.9.0",
"source": "[email protected]"
},
{
"url": "https://github.com/rucio/rucio/releases/tag/38.6.0",
"source": "[email protected]"
},
{
"url": "https://github.com/rucio/rucio/releases/tag/41.0.0rc1",
"source": "[email protected]"
},
{
"url": "https://github.com/rucio/rucio/security/advisories/GHSA-5j9r-fx4x-rpvg",
"source": "[email protected]"
}
]
}